Function Test After The Repair - WAGNER Cobra 40-10/2K Translation Of The Original Operating Manual

VERSION 07/2014
OPERATING MANUAL
11

FUNCTION TEST AFTER THE REPAIR

After all repairs, the device must be checked for safe condition before recommissioning.
The necessary scope of inspection and testing depends on the repair carried out and must
be documented by the repair staff .
Activities
1.1 Piston Travel
- It must be possible to move the piston rod on both sides until the
button stop with a pre-assembled pressure stage. Balancing bore must
be completely open in the respective end position (visual inspection,
(see Chapter 14.4).
1.2 Oil fi lling
- Mount pressure and fl uid section on frame. Push piston into air motor-
side end position. Fill pre-assembled pump with oil via fi lling port until
oil is visible in the oil tank. Push piston into the opposite end position. Fill
pump further with oil until just below end of oil tank inspection window
(see Chapter 8.2.6)
1.3 EX-relevant inspections
- Check mass connection between grounding connection of the pump
and the frame/trolley and between the individual components of the
frame/trolley: <100kΩ
- Check conductivity between the piston and the grounding connection:
<100kΩ
!! These inspections are
1.4 Testing for Leaks
- Connect the air motor to the air supply 6 bar. To perform a leak test
on the device, the product pressure with the fl ushing agent is slowly
increased in increments until the maximum pressure indicated on the
type plate is reached. Close pump outlet. Allow to stand in this position
for 0.5-1 minute and listen for audible blowing off . Close air-supply ball-
valve without relieving and check for pressure-loss.
Check seal of following modules:
Flange seal
- Ball valve (in all positions)
- Pressure stage
- Fluid section
ORDER NUMBER DOC2349980
- relevant!!
Aid tools
Manual inspection
Oil fi lling unit
Ohmmeter
Air motor:
Test medium compressed
air
Leak spray
Fluid section:
Test medium: suitable
fl ushing agent
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